If i have the chance I would do it!!

Engine oil should be changed every 10000 KM and if the last servicing was at 27000 km and now is 52000 it means 25000 km without any check or servicing.

Wow that's too much. It means almost 2 1/2 oil changes must have been done.

Once again If I were yu I would go for servicing.

Regards!!